Answer :
2 x 2 x 3 = 12
2 x 3 x 3 = 18
2 x 2 x 2 x 3 = 24
2 x 2 x 2 x 3 x 3 = 72
so it would be B
2 x 3 x 3 = 18
2 x 2 x 2 x 3 = 24
2 x 2 x 2 x 3 x 3 = 72
so it would be B